Tile Adhesive
Product summary
Tile adhesive is a specialized factory-made mixture used to glue tiles on surfaces like floors, walls, and swimming pools. Unlike traditional sand-and-cement mortars, modern adhesives are engineered for high strength, flexibility, and ease of application.
Category
Building Raw Materials
Built for B2B buyers looking for dependable supply and clear specifications.
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Detailed product information
1. Product Description
Tile adhesive is a cementitious or resin-based bonding agent designed to secure various types of tiles (ceramic, porcelain, stone, glass) to diverse substrates. It is typically available as a dry-mix powder that requires only the addition of water, or as a pre-mixed paste (mastic) for immediate use.
### Key Characteristics
High Bond Strength: Formulated to grip non-porous surfaces like porcelain or existing tiles.
Workability: Offers a long "open time," allowing installers to adjust tiles before the adhesive sets.
Sag Resistance: Designed to hold heavy wall tiles in place without sliding during installation.
Water & Heat Resistance: Specialized versions are available for wet areas (showers) or high-temperature environments (fireplaces).
## 2. Technical Specifications
Specifications generally follow international standards such as ISO 13007 or EN 12004. Adhesives are classified by their chemistry and performance:
| Feature | Specification Range |
|---|---|
| Classification | C1 (Standard), C2 (Enhanced), T (Thixotropic/Non-slip), E (Extended open time) |
| Mixing Ratio | ~5 to 6 Liters of water per 20kg bag |
| Pot Life | 2 to 3 hours (at 25°C - 30°C) |
| Open Time | 20 to 30 minutes |
| Adjustment Time | 15 to 20 minutes |
| Tensile Adhesion | $\ge 0.5\text{ N/mm}^2$ (C1) to $\ge 1.0\text{ N/mm}^2$ (C2) |
| Grouting Interval | 24 hours (Walls), 24–48 hours (Floors) |
| Full Cure | 14 to 28 days |
3. Common Types of Adhesive
Type 1 (C1): Standard cementitious adhesive for ceramic tiles on internal walls and floors.
Type 2 (C2): High-performance adhesive with polymers for porcelain tiles, large format stones, and external applications.
Flexible (S1/S2): Deformable adhesives designed for substrates subject to vibration or thermal expansion (e.g., plywood floors or underfloor heating).
Epoxy Adhesive: A chemical-resistant resin adhesive used in industrial kitchens, hospitals, or areas requiring extreme hygiene and durability.
4. Application Guide
Surface Prep: Ensure the substrate is clean, dry, and level.
Mixing: Mix the powder with water until a lump-free, creamy consistency is achieved. Let it "slake" (sit) for 5 minutes, then re-mix.
Spreading: Apply the adhesive using a notched trowel. The notch size depends on the tile size (e.g., 6mm for small tiles, 10mm-12mm for large format).
Fixing: Press the tile firmly into the ribs of the adhesive and twist slightly to ensure full coverage.
Cleaning: Remove excess adhesive from the tile surface and joints with a damp sponge before it hardens.
Pro Tip: Always check the "back-buttering" requirement for large tiles. Applying a thin layer of adhesive to the back of the tile itself ensures 100% contact and prevents hollow spots.
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